Trying to carbon-date these spices. Apparently the change from Glidden to SCM as parent corporation in 1967 corresponded with a change in logo, addition of metric labeling, and removal of price spot. This house was built in 1985 so the spices are older.
South African Transport Services Pictorial Review is from pre-democratic South Africa and includes a map with the unrecognized bantustan “country” of Transkei
Electric Trains of South Africa
Some infrastructure shots in the book include a telephone exchange in Durban, the master clock in Johannesburg, and a traffic control room